GM(1,1) Modeling Method of Optimum the Whiting Values of Grey Derivative
优化灰导数白化值的GM(1,1)建模法

In this paper, we put forward a GM(1,1) modeling method by taking the optimum weighted averages of ahead difference quotient and back difference quotient as the grey derivative whiting values, prove that the new method have the linear transformation consistency, and show, by a practical example, that the new method have higher precision.